“Say that the necklace dropped off as he leaned over to help Lady Varron. In the momentary excitement he could, under their very noses, have fastened the clamp to the necklace. Instantly the jewels would have disappeared up his sleeve and he could have submitted to any sort of perfunctory search of his pockets as he suggested.”
“That’s a trick professional gamblers have to get rid of cards,” remarked Detective Mallory.
“Oh, it isn’t new then?” asked The Thinking Machine. “Immediately he left the ballroom he hid this necklace as he had hidden other jewels, and before you knew of the theft, wrote and mailed full directions to Mr. Manderling here what to do. You did not intercept any letters, of course, until after you knew of this theft. Leighton had perhaps had other dealings with Mr. Manderling in other parts of the world, when he was not so closely watched as in this particular instance. I daresay, however, he had them all planned carefully for fear the very thing that did happen in this case would happen.”
Half an hour later Conway shook hands with The Thinking Machine, thanked him heartily and the little party dispersed.
“I had given it up,” Conway confessed as he was going out.
“You see,” remarked The Thinking Machine, “gentlemen of your profession use too little common sense. Remember that two and two always make four—not some times but all the time.”
Leighton has not yet been caught. Manderling made a model prisoner.
The Problem of the Motor Boat
Captain Hank Barber, master mariner, gripped the bow-rail of the Liddy Ann and peered off through the semi-fog of the early morning at a dark streak slashing along through the gray-green waters. It was a motor boat of long, graceful lines; and a single figure, that of a man, sat upright at her helm staring uncompromisingly ahead. She nosed through a roller, staggered a little, righted herself and sped on as a sheet of spray swept over her. The helmsman sat motionless, heedless of the stinging splash of wind driven water in his face.
“She sure is a-goin’ some,” remarked Captain Hank, reflectively. “By Ginger! If she keeps it up into Boston Harbour she won’t stop this side o’ the Public Gardens.”
Captain Hank watched the boat curiously until she was swallowed up, lost in the mist, then turned to his own affairs. He was a couple of miles out of Boston Harbour, going in; it was six o’clock of a gray morning. A few minutes after the disappearance of the motor boat Captain Hank’s attention was attracted by the hoarse shriek of a whistle two hundred yards away. He dimly traced through the mist the gigantic lines of a great vessel—it seemed to be a ship of war.
It was only a few minutes after Captain Hank lost sight of the motor boat that she was again sighted, this time as she flashed into Boston Harbour at full speed. She fled past, almost under the prow of a pilot boat, going out, and was hailed. At the mess table later the pilot’s man on watch made a remark about her.
“Goin’! Well, wasn’t she though! Never saw one thing pass so close to another in my life without scrubbin’ the paint offen it. She was so close up I could spit in her, and when I spoke the feller didn’t even look up—just kept a-goin’. I told him a few things that was good for his soul.”
Inside Boston Harbour the motor boat performed a miracle. Pursuing a course which was singularly erratic and at a speed more than dangerous she reeled on through the surge of the sea regardless alike of fog, the proximity of other vessels and the heavy wash from larger craft. Here she narrowly missed a tug; there she skimmed by a slow moving tramp and a warning shout was raised; a fisherman swore at her as only a fisherman can. And finally when she passed into a clear space, seemingly headed for a dock at top speed, she was the most unanimously damned craft that ever came into Boston Harbour.
“Guess that’s a through boat,” remarked an aged salt, facetiously as he gazed at her from a dock. “If that durned fool don’t take some o’ the speed offen her she’ll go through all right—wharf an’ all.”
Still the man in the boat made no motion; the whiz of her motor, plainly heard in a sudden silence, was undiminished. Suddenly the tumult of warning was renewed. Only a chance would prevent a smash. Then Big John Dawson appeared on the string piece of the dock. Big John had a voice that was noted from Newfoundland to Norfolk for its depth and width, and possessed objurgatory powers which were at once the awe and admiration of the fishing fleet.
“You ijit!” he bellowed at the impassive helmsman. “Shut off that power an’ throw yer hellum.”
There was no response; the boat came on directly toward the dock where Big John and his fellows were gathered. The fishermen and loungers saw that a crash was coming and scattered from the string piece.
“The durned fool,” said Big John, resignedly.
Then came the crash, the rending of timbers, and silence save for the grinding whir of the motor. Big John ran to the end of the wharf and peered down. The speed of the motor had driven the boat half way upon a float which careened perilously. The man had been thrown forward and lay huddled up face downward and motionless on the float. The dirty water lapped at him greedily.
Big John was the first man on the float. He crept cautiously to the huddled figure and turned it face upward. He gazed for an instant into wide staring eyes then turned to the curious ones peering down from the dock.
“No wonder he didn’t stop,” he said in an awed tone. “The durned fool is dead.”
Willing hands gave aid and after a minute the lifeless figure lay on the dock. It was that of a man in uniform—the uniform of a foreign navy. He was apparently forty-five years old, large and powerful of frame with the sun-browned face of a seaman. The jet black of moustache and goatee was startling against the dead colour of the face. The hair was tinged with gray; and on the back of the left hand was a single letter—“D”—tattooed in blue.
“He’s French,” said Big John authoritatively, “an’ that’s the uniform of a Cap’n in the French Navy.” He looked puzzled a moment as he stared at the figure. “An’ they ain’t been a French man-o’-war in Boston Harbour for six months.”
After awhile the police came and with them Detective Mallory, the big man of the Bureau of Criminal Investigation; and finally Dr. Clough, Medical Examiner. While the detective questioned the fishermen and those who had witnessed the crash Dr. Clough examined the body.
“An autopsy will be necessary,” he announced as he arose.
“How long has he been dead?” asked the detective.
“Eight or ten hours, I should say. The cause of death doesn’t appear. There is no shot or knife wound so far as I can see.”
Detective Mallory closely examined the dead man’s clothing. There was no name or tailor mark; the linen was new; the name of the maker of the shoes had been ripped out with a knife. There was nothing in the pockets, not a piece of paper or even a vagrant coin.
Then Detective Mallory turned his attention to the boat. Both hull and motor were of French manufacture. Long, deep scratches on each side showed how the name had been removed. Inside the boat the detective saw something white and picked it up. It was a handkerchief—a woman’s handkerchief, with the initials “E. M. B.” in a corner.
“Ah, a woman’s in it!” he soliloquised.
Then the body was removed and carefully secluded from the prying eyes of the press. Thus no picture of the dead man appeared. Hutchinson Hatch, reporter, and others asked many questions.
Detective Mallory hinted vaguely at international questions—the dead man was a French officer, he said, and there might be something back of it.
“I can’t tell you all of it,” he said wisely, “but my theory is complete. It is murder. The victim was captain of a French